Initial scalability architecture proposal

[ashwinprasadme]

After the initial research of scalability, the architecture for scaling is to be made and we should come up with initial architecture choices for discussion. We will aggregate important topics of discussion and practical guides here.

Task List

• [ ] Select the approaches studied as part of initial research for further investigation (@dramesh94 )
• [ ] Come up with concrete architecture design for further investigation (@bhargavimohan )
• [ ] Do a feasibility study and investigate implementational challenges (@iashwinprasada )

[ashwinprasadme]

HAProxy

• Basic introduction
• Interesting insights (Monitoring?)
• Dynamic scaling - HAProxy API

• HAProxy on ubuntu

Database Scaling

Sonata uses postgresql, but nonetheless MySQL based links are still relevant

• HAProxy Databases
• Quick introduction to Database Clustering
• Tutorial series for setting up database cluster
• Official Documentation and discussion on Scalability
• Practical guide for Postgres replication setup
• Good slide on MYSQL group-replication
• MySQL group-replication

[ashwinprasadme]

SFC/VNFFG Basics

• OSM vnffgd example NSD
• OpenStack SFC demo
  • link to script
• Interesting intern project with a simple vnffg
• New networking-sfc commands - Docs
• Some info about port pairs, etc - Link

[ashwinprasadme]

Further steps after discussion

• Load balancing should be part of the MANO itself instead of a separate VNF.
• A simple round robin can be done to distribute the load among MANO instances.
• Can use OSM image for now instead of Pishahang for openstack
• Can investigate forwarding graph with pishahang example: Ping Pong

[ashwinprasadme]

Dynamic scaling

• HAProxy dynamic API examples
• HAProxy python API
• Explanation of HAProxy config file

[ashwinprasadme]

child mano, hirarchical scalability POC implemented as part of the scalability plugin